deepseek-debug

A bug-diagnosis guide for DeepSeek R1 that requires reading the full error, classifying it, testing possible causes, and reporting unresolved bugs.

In plain words
What is it for?
Use it to investigate stack traces, locate faults, form and verify hypotheses, and document bugs that cannot be fixed.
Why use it?
It reduces guesswork when software behaves unexpectedly by connecting the error message to its likely cause before changes are made.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/gonzi-stack/deepseek-skills/deepseek-debug
Any agent
npx skills add gonzi-stack/deepseek-skills --skill deepseek-debug
Clone the repo
git clone --depth 1 https://github.com/gonzi-stack/deepseek-skills

Made for: Claude Code, Codex.

Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,484 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00080 $0.02484
Opus 5 $0.00040 $0.01242
Sonnet 5 $0.00016 $0.00497
Haiku 4.5 $0.00008 $0.00248

Measured 2d ago against content hash 8db53605b32c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

deepseek-debug scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/.skills/skills/deepseek-debug/SKILL.md · 309 lines

How it starts

The opening of the file, as written. The whole thing — 309 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DeepSeek Bug Diagnosis Skill — Universal

Un error no es un obstáculo — es información. Tu trabajo es extraer esa información sistemáticamente antes de escribir una sola línea de corrección.


Principio fundamental

Nunca corrijas lo que no entendés. Cada corrección sin diagnóstico completo es una apuesta. A veces funciona. Siempre deja deuda técnica oculta.

El flujo correcto es siempre:

ERROR → LEER → ENTENDER → LOCALIZAR → HIPÓTESIS → VERIFICAR → CORREGIR

No:

ERROR → ADIVINAR → CAMBIAR COSAS → REZAR

FASE 1 — Leer el error completo

1.1 Nunca leer solo la primera línea

Los errores tienen estructura. La primera línea es el síntoma. Las líneas siguientes son la causa.

TypeError: Cannot read properties of undefined (reading 'user')
    at createContext (src/server/context.ts:45:32)      ← dónde pasó exactamente
    at src/app/api/route.ts:12:5                        ← cómo llegamos ahí
  • Línea 1: qué pasó
  • Línea 2+: dónde pasó (archivo, línea, columna) y el call stack

Leer solo la primera línea y adivinar la causa es un error de principiante.

1.2 Clasificar el tipo de error antes de actuar

Tipo Señales Dónde buscar
TypeError / AttributeError undefined is not a function, has no attribute El objeto era null/undefined cuando no debía serlo
Error de tipos estáticos Type 'X' is not assignable to 'Y', incompatible types Discrepancia entre tipos declarados y reales
Error de validación ZodError, ValidationError, schema mismatch Input no cumple el schema esperado
Error de DB tabla inexistente, columna inválida, constraint violada, connection refused Schema, nombre de tabla/columna, conexión
Error de imports Module not found, Cannot resolve, ImportError Path incorrecto, export faltante, módulo no instalado
Error de runtime genérico 500 Internal Server Error, uncaught exception Logs del servidor para ver el error real
Error de configuración variables de entorno faltantes, config inválida Archivos de configuración, .env
Error de auth 401, 403, sesión nula inesperada Middleware, tokens, cookies

Read the full file on GitHub · 309 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 309 lines · 80 tokens per session scan A 8db53605b32c

Subscribe to this mod's changes

deepseek-debug is a skill published in the GitHub repository gonzi-stack/deepseek-skills (2 stars, last pushed 4mo ago), licensed MIT. It adds 80 tokens to every session and 2,484 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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